Update usage for system/user services with options

CMakeLists.txt

@@ -6,16 +6,6 @@ set(CMAKE_C_STANDARD 11)
 # Include GNU install directory module to detect where to install
 # files on Linux/Unix systems (e.g., lib vs lib64)
 include(GNUInstallDirs)
-find_package(PkgConfig)
-
-# Try to get the systemd directory for user units from the package
-# and fall back on upstream default without the '/usr' prefix
-pkg_check_modules(SYSTEMD systemd)
-if (SYSTEMD_FOUND)
-    pkg_get_variable(SD_UNITDIR systemd systemduserunitdir)
-else()
-    set(SD_UNITDIR "lib/systemd/user")
-endif()
 
 execute_process(COMMAND git describe --tags --long --always RESULT_VARIABLE RC_GIT_VER OUTPUT_VARIABLE GIT_VERSION)
 

Daemon/CMakeLists.txt

@@ -1,5 +1,29 @@
-configure_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}/ydotoold.service.in"
-    "${PROJECT_BINARY_DIR}/ydotoold.service"
-    @ONLY)
-install(FILES "${PROJECT_BINARY_DIR}/ydotoold.service" DESTINATION ${SD_UNITDIR})
+option(SYSTEMD_USER_SERVICE "Install systemd user service file" ON)
+option(SYSTEMD_SYSTEM_SERVICE "Install systemd system service file" OFF)
+option(OPENRC "Install OpenRC service file" OFF) # To be implemented
+
+if(SYSTEMD_USER_SERVICE AND SYSTEMD_SYSTEM_SERVICE)
+    message(FATAL_ERROR "Both system and user services are enabled. Choose one.")
+endif()
+
+if(SYSTEMD_USER_SERVICE OR SYSTEMD_SYSTEM_SERVICE) 
+    find_package(PkgConfig)
+    # Try to get the systemd directory for system/user units from the package
+    # and fall back on upstream default without the '/usr' prefix
+    pkg_check_modules(SYSTEMD systemd)
+    if (SYSTEMD_FOUND)
+        if(SYSTEMD_USER_SERVICE)
+            pkg_get_variable(SD_UNITDIR systemd systemduserunitdir)
+        elseif(SYSTEMD_SYSTEM_SERVICE)
+            pkg_get_variable(SD_UNITDIR systemd systemdsystemunitdir)
+        endif()
+    # else()
+    #     set(SD_UNITDIR "lib/systemd/user")
+    endif()
+
+    configure_file(
+        "${CMAKE_CURRENT_SOURCE_DIR}/ydotoold.service.in"
+        "${PROJECT_BINARY_DIR}/ydotoold.service"
+        @ONLY)
+    install(FILES "${PROJECT_BINARY_DIR}/ydotoold.service" DESTINATION ${SD_UNITDIR})
+endif()

Daemon/ydotoold.service.in

@@ -1,5 +1,5 @@
 [Unit]
-Description=Starts ydotoold user service
+Description=Starts ydotoold Daemon
 
 [Service]
 Type=simple
@@ -13,4 +13,3 @@ TimeoutSec=180
 
 [Install]
 WantedBy=basic.target
-